/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
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 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 * exception as provided by Oracle in the GPL Version 2 section of the License
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 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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package org.glassfish.jersey.examples.aggregator;

import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;
import javax.swing.DefaultListModel;
import javax.swing.JList;
import javax.swing.KeyStroke;

/**
 * TODO: javadoc.
 *
 * @author Marek Potociar (marek.potociar at oracle.com)
 */
public final class RemoveSelectedListItemsAction extends AbstractAction {

    private final JList list;
    private final DefaultListModel listModel;

    public RemoveSelectedListItemsAction(JList list, DefaultListModel model) {
        if (list == null || model == null) {
            throw new NullPointerException("Bound JList component and it's model must not be null.");
        }

        this.list = list;
        this.listModel = model;

        putValue(NAME, "Delete");
        putValue(ACCELERATOR_KEY, KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0));
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        removeSelectedListItems();
    }

    private void removeSelectedListItems() {
        Object[] selectedValues = list.getSelectedValues();
        boolean itemsSelected = selectedValues.length > 0;

        if (itemsSelected && confirmRemove()) {
            for (Object selectedValue : selectedValues) {
                listModel.removeElement(selectedValue);
            }
        }
    }

    private boolean confirmRemove() {
        // E.g. JOptionPane-Confirm-Dialog
        return true;
    }
}
